27617615741 has 2 divisors, whose sum is σ = 27617615742. Its totient is φ = 27617615740.

The previous prime is 27617615687. The next prime is 27617615747. The reversal of 27617615741 is 14751671672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19312938841 + 8304676900 = 138971^2 + 91130^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27617615741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27617615747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13808807870 + 13808807871.

It is an arithmetic number, because the mean of its divisors is an integer number (13808807871).

Almost surely, 2^27617615741 is an apocalyptic number.

It is an amenable number.

27617615741 is a deficient number, since it is larger than the sum of its proper divisors (1).

27617615741 is an equidigital number, since it uses as much as digits as its factorization.

27617615741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 493920, while the sum is 47.

The spelling of 27617615741 in words is "twenty-seven billion, six hundred seventeen million, six hundred fifteen thousand, seven hundred forty-one".